A snus pouch is generally meant to be a disposable product, but that doesn’t mean it cannot be recycled. Recycling snus pouches will, however, mean that you’re sacrificing quality in terms of both aroma and taste, and you also run the risk that the pouch will give you a dry mouthfeel the second time around. There is still nothing wrong with giving it a go, and you might decide that the slightly lowered quality is worth it for a penny saved here and there. In an environmental perspective, any reuse is positive, and so you might even end up with a better conscience!
Avoid bacteria in your snus
One of the most important things to think about if you want to reuse your snus is to avoid growth of bacteria. Bacteria often thrive in moist environments, and a used snus pouch will also bring with it bacteria that are already living in your mouth. To avoid giving these microbes a comfortable stay in your snus pouch, you should store it only for a short time before using it again, and preferably somewhere both dry and cold. The fridge might be your best bet, but a used pouch kept in the lid of your snus can should also be fairly safe if only stored for a few hours.
Keeping used snus fresh
Keeping used snus fresh will be difficult, as many of the flavour compounds will already have dissolved into your saliva. The same might be true for some of the nicotine in the snus, which means you might experience less of a buzz when using the pouch for the second time. A way around this may be to use two used pouches at the same time or to use the pouch for a shorter amount of time the first time around. Either way, there is no way of keeping used snus as fresh and appealing as new snus, and so recycling might be best as a worst-case option.